Bluetooth Muscle Trainer / Prototype
I made a good experience with PCBWAY. The board has two footprints ball grid array components. These footprints have pads with a diameter of 0.22 mm and a pitch of 0.4. I was amazed about the quality I received. I also ordered a paste mask from PCBWAY. Placing the small components by hand required a quiet hand and patience. It took me several hours. But then soldering was easy using my DIY re-flow owen. The result is show in the picture below. Thanks to PCBWAY

Dec 21,2021
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